Last updated: June 2, 2025
In San Francisco Guichina, Mexico, understanding the UV Index is crucial for protecting your skin and overall health. With UV radiation peaking at levels that can lead to sunburns and long-term skin damage, being aware of daily UV fluctuations can help you take proactive measures. Given the city's BSh climate, which features plenty of sunny days, residents and visitors alike should be especially mindful of high UV levels around midday. With indices soaring to 14 between 1 PM and 2 PM, knowing when to seek shade or apply sunscreen can make a significant difference in maintaining healthy skin. Stay informed and enjoy the sun safely!
The UV Index today showcases a dramatic rise in intensity, starting from a mild 1 at 07:00 and 08:00. By 09:00, it climbs to 3, but the real surge begins shortly after, peaking at an impressive 14 between 13:00 and 14:00. This marks the hottest point of the day, where sun protection is crucial. As the afternoon fades, the index gradually decreases, sliding to 11 at 15:00 and dropping to a manageable 2 by 18:00. It’s vital to stay vigilant during midday hours when the UV Index reaches its zenith at 13:00. Enjoy the sunshine, but don’t forget your sunscreen!
| Time | UVI | Category | Time to Burn |
|---|---|---|---|
| 07:00 | 1 | low | 45 min |
| 08:00 | 1 | low | 45 min |
| 09:00 | 3 | moderate | 30 min |
| 10:00 | 6 | high | 25 min |
| 11:00 | 10 | very high | 15 min |
| 12:00 | 13 | extreme | 10 min |
| 13:00 | 14 | extreme | 10 min |
| 14:00 | 14 | extreme | 10 min |
| 15:00 | 11 | extreme | 10 min |
| 16:00 | 8 | very high | 15 min |
| 17:00 | 5 | moderate | 30 min |
| 18:00 | 2 | low | 45 min |
| 19:00 | 1 | low | 45 min |
The UV Index exhibits significant seasonal variation, peaking during the months of February through October, where the index consistently falls within the extreme category (10-15) and the burn time is notably short at 10 minutes. March, April, May, July, and August see UV Index levels reaching their highest at 15, indicating very high risk for skin damage from sun exposure. January and November are also identified as high-risk months, with UV levels at 10, but with a slightly longer burn time of 15 minutes. During these peak months, it is crucial for both visitors and residents to take protective measures, such as wearing sunscreen, hats, and protective clothing, and seeking shade during the hottest parts of the day to minimize UV exposure and reduce the risk of sunburn.
UV Risk Categories
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Guadalajara UVI | 9 | 11 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 9 | 8 |
| Iztapalapa UVI | 10 | 12 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 10 | 8 |
| Ecatepec de Morelos UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
| Mexico City UVI | 10 | 12 | 14 | 15 | 15 | 14 | 14 | 13 | 14 | 12 | 10 | 8 |
| San Francisco Guichina | 10 | 13 | 14 | 15 | 15 | 14 | 15 | 14 | 14 | 12 | 10 | 9 |
| Puebla UVI | 10 | 12 | 14 | 15 | 15 | 15 | 15 | 14 | 14 | 13 | 10 | 9 |